Automatic gas-controller



E. T. OFELDT.

AUTOMATIC GAS CONTROLLER.

APPLICATION FILED SERT. 30. 1919.

mntea'July 6, 1920.

A TTUHNEYS running engine.

, which operate as an adjunct. to manuallyy UNITED STATES ERNEST THEODORE OFELDT, OF SPRING LAKE, NEW JERSEY,IASSIGNGR 0F HALF T0 ROBERT A. CEESEBROUGH, 0F SPR-ING LAKE, NEW JERSEY.

PATENT ONE- AUTOMATIC GAS-CONTROLLER.

of Spring Lak in the county of Monmouth and State of ew Jersey, have invented a new and Improved Automatic Gas-Controller, of` which the following is a full, clear,

' and exact description.

This invention relates to improvements in automatic gas controllers, and more particularly to automatic means for controlling the feed of gasolene and air to an internal combustion engine in accordance with thel speed'of the engine.

A further object is to provide improvements of the character stated, which result in an economy of fuel and a more perfect A further object is to provide improvements of the character stated, which can be attached to any gasolene englne' and control the means so that the desired proportion of asolene and air can be manually regulated or starting and then automati-y cally regulated after the engine is warmed pWith these andother objects in 'view the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure l is a view in section illustrating my improvements; and i l Fig. 2 is a fragmentary plan view. A

A represents a carbureter having a oat chamber l and a mixing chamber 2, the latter in the form of an elbow pipe, as shown. A ioat 3 is provided lin chamber 1 and is xed to a needle valve 4 controlling the intake of gasolene from an inlet 5 `and a pipe 6 connects the chamber 1 with a nozzle 7 longitudinally disposed in the mixing chamber 2. A needle valve 8 vcontrols the outlet from the nozzle 7, and'dampers 9 and l0 are. rovided in the ends of the mixing chamber,

otary shutters 11 and 12 control the admission of air to the mixing chamber and a rod 13 is connected to one of these-shutters and is adapted to be manually operatedin any approved manner. l

The stem 14 of the needle valve 8 is'screw threaded, as shown at 15, and engages the' Specification of Letters Patent.

Patented July c, 1920.

Application `:Bled September 30, 1919. Serial No. 327,548.

internal threads of a sleeve which is on the y mixing chamber so that when vthe stem 14 is turned, it will cause the valve to move toward or away from the nozzle 7 and regulate the escape of gasolene into the mixing chamber.

vA crank arm 17 is secured to the end of stem 14 and av sliding rod 18 is operatively connected to the 'crank arm 17 so that the longitudinal movement of the rod 18A causes a turning movement of the stem 14 to operl ate the needle valve 8. A lever 19 having a manually controlled rod 20 connected thereto engages one of the collars 30 on the rod 18 to permitthe manual movement of the rod 18 and the valve 8 through the medium of any desired mechanism, as will be understood. v

21 represents a governorcasing in which a shaft 22 has rotary'mounting and a" pulley 23-on one end of the shaft 22 is adapted to be driven from any suitable part of the engine, not shown. In fact, any desired power transmission means may be employed between the shaft 22 and the engine so that the shaft is turned as the engine is driven. Weighted arms 24 are carried by the shaft 22 and are adapted to be bowed by centrifugal force to move a rocved collar 25 longitudinally of the sha t 22. A lever 26 projects into the casing 21 and is pivotally supported on abracket 27. One end of this lever 26 engages the grooved collar 25 so that the movement of the collar causes a pivotal movement of the lever.

The lever 26 near its opposite end is connected to a sliding .sleeve 28 on the rod 18 and compensating springs 29 are positioned around the rod 18 at opposite sides of the sleeve 28 and bear against collars 30 fixed to the rod 18. The extreme end of the lever 26 is connected to a rod 31 and the latter to the shutter 12.

The operation is as follows: As above stated, the needle valve 8 can be manually controlled by means of the rod 2() and the shutter 1l can be manually controlled by means of the rod 13 to allow any desired mixture to be supplied to the engine to start it. After the engine is warmed up ano. is running at a predetermined speed, the weighted arms 24 are thrown outwardly by centrifugal force, and'through the medium of the collar 25 and lever 26, rods 18 and 81 are moved longitudinally. The rod 18 by 'ict reason of its engagement with the crank arm 17 causes a rotary movement of the stem 14 to move the needle valve 8 toward the nozzle 7 and reduce the flow of gasolene, While the rod 31 operates the shutter 12 to increase the supplyof air.

The* chambers 9 and 10 are positioned as desired to suit conditions and hence While the engine is running the supply of gasolene and air is automatically controlled in accordance With the speed. This results in an econ-` omy of fuel and in a more perfect combustion and relieves the operator of the necessity for manually controlling the mixture in accordance with the sneed.

Various slight changes may be made in the general form and arrangement of parts described without departing from the invention, and hence I do not limit myself to the precise details/.set forth but consider myself at liberty to make such changes and alterations as fairly fall Within the spirit and scope of the appended claims.

Iclaim:

1. The combination with a carbureter, of a gasolene feed valve, an air valve, a pair of air. intakeshutters for said airvalve, automatic means for controlllng the position ofv the gasolene feed valve and the movement of one of the shutters by the speed of Athe engine, and manuall operated means for moving the gasolene feed valve and moving the L otherpof said shutters.

2. The combination With a carbureter, a rotary needle valve controlling the outlet of gasolene from the carbureter, a shutter controlling the intakeof air,a governor' adapt- 'l ed to be operatively connected to anenglne,

a lever moved by the governor, a crank arm on' the needle valve, a rod connecting the crank arm and lever, a rod connected to the shutter and to said lever, a sleeve mount,-v

ed to slide on the first-mentionedV rod and connected to the lever, fixed collars on the first-mentioned rod, and coiled springs on the,

sleeve-carrying rod between the sleeve and the collars.

3. The combination With a carbureter, a rotary needle valve controlling the outlet of gasolene from the carbureter, a shutter controlling the intake of air, a governor adapted to be operatively connected to an engine,

controlling the intake of air, a governor adapted to be operatively connected to an engine, a lever moved by the governor, a crank arm on the needle valve, a rod connected to the crank arm, means connecting the shutter and lever, a sleeve mounted to slide on the rod and connected to the lever, fixed collars Aon the rod, coiled springs on the rod between the sleeve and the collars, a second shutter controlling the inlet of air, manually operated means engaging` said shutter, and manually operated means for moving the needle valve.

5. A device of the character stated, comprising a mixing chamber, a gasolene supply means, a nozzle in the mixing chamber communicating With said means, a rotary screw threaded needle valve controlling the outlet 'from the nozzle, a pair of shutters controlling the inlet of airto the mixing chamber,

a governor operatively connected tothe needle valve and to one of the shutters, a manually controlled means for moving the needle valve, and a second manually controlled means for moving one of the said shutters.

ERNEST THEODORE OFELDT. 

